Home / 90,102,903.21-124,361,455.05-54,832,072.37

Finding the Fourth Proportional to 90,102,903.21, 124,361,455.05 and 54,832,072.37

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Solution

The fourth proportional to 90,102,903.21, 124,361,455.05 and 54,832,072.37 is: 75,680,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,102,903.21 : 124,361,455.05 = 54,832,072.37 : x
  2. Step 2: Convert to fraction form
    90,102,903.21/124,361,455.05 = 54,832,072.37/x
  3. Step 3: Cross multiply
    90,102,903.21x = 124,361,455.05 × 54,832,072.37
  4. Step 4: Simplify right side
    90,102,903.21x = 6,818,996,302,718,295
  5. Step 5: Solve for x
    x = 6,818,996,302,718,295/90,102,903.21
  6. Step 6: Final answer
    x = 75,680,095.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.